2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
69 /* SSL3err(SSL_F_SSL3_GET_FINISHED,SSL_R_EXCESSIVE_MESSAGE_SIZE);
72 int ssl3_send_finished(s,a,b,sender,slen)
76 unsigned char *sender;
85 d=(unsigned char *)s->init_buf->data;
88 i=s->method->ssl3_enc->final_finish_mac(s,
89 &(s->s3->finish_dgst1),
90 &(s->s3->finish_dgst2),
96 /* MSVC 1.5 does not clear the top bytes of the word unless
102 *(d++)=SSL3_MT_FINISHED;
104 s->init_num=(int)l+4;
110 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
111 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
114 int ssl3_get_finished(s,a,b)
123 /* the mac has already been generated when we received the
124 * change cipher spec message and is in s->s3->tmp.in_dgst[12]
127 n=ssl3_get_message(s,
131 64, /* should actually be 36+4 :-) */
134 if (!ok) return((int)n);
136 /* If this occurs if we has missed a message */
137 if (!s->s3->change_cipher_spec)
139 al=SSL_AD_UNEXPECTED_MESSAGE;
140 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
143 s->s3->change_cipher_spec=0;
145 p=(unsigned char *)s->init_buf->data;
147 i=s->method->ssl3_enc->finish_mac_length;
151 al=SSL_AD_DECODE_ERROR;
152 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
156 if (memcmp( p, (char *)&(s->s3->tmp.finish_md[0]),i) != 0)
158 al=SSL_AD_DECRYPT_ERROR;
159 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
165 ssl3_send_alert(s,SSL3_AL_FATAL,al);
169 /* for these 2 messages, we need to
170 * ssl->enc_read_ctx re-init
171 * ssl->s3->read_sequence zero
172 * ssl->s3->read_mac_secret re-init
173 * ssl->session->read_sym_enc assign
174 * ssl->session->read_compression assign
175 * ssl->session->read_hash assign
177 int ssl3_send_change_cipher_spec(s,a,b)
185 p=(unsigned char *)s->init_buf->data;
193 /* SSL3_ST_CW_CHANGE_B */
194 return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
197 unsigned long ssl3_output_cert_chain(s,x)
205 X509_STORE_CTX xs_ctx;
208 /* TLSv1 sends a chain with nothing in it, instead of an alert */
210 if (!BUF_MEM_grow(buf,(int)(10)))
212 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
217 X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
222 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
224 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
227 p=(unsigned char *)&(buf->data[l]);
231 if (X509_NAME_cmp(X509_get_subject_name(x),
232 X509_get_issuer_name(x)) == 0) break;
234 i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
235 X509_get_issuer_name(x),&obj);
238 /* Count is one too high since the X509_STORE_get uped the
243 X509_STORE_CTX_cleanup(&xs_ctx);
246 /* Thwate special :-) */
247 if (s->ctx->extra_certs != NULL)
248 for (i=0; i<sk_num(s->ctx->extra_certs); i++)
250 x=(X509 *)sk_value(s->ctx->extra_certs,i);
252 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
254 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
257 p=(unsigned char *)&(buf->data[l]);
264 p=(unsigned char *)&(buf->data[4]);
267 p=(unsigned char *)&(buf->data[0]);
268 *(p++)=SSL3_MT_CERTIFICATE;
274 long ssl3_get_message(s,st1,stn,mt,max,ok)
285 if (s->s3->tmp.reuse_message)
287 s->s3->tmp.reuse_message=0;
288 if ((mt >= 0) && (s->s3->tmp.message_type != mt))
290 al=SSL_AD_UNEXPECTED_MESSAGE;
291 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
295 return((int)s->s3->tmp.message_size);
298 p=(unsigned char *)s->init_buf->data;
302 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
303 (char *)&(p[s->init_num]),
305 if (i < (4-s->init_num))
308 return(ssl3_part_read(s,i));
311 if ((mt >= 0) && (*p != mt))
313 al=SSL_AD_UNEXPECTED_MESSAGE;
314 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
317 s->s3->tmp.message_type= *(p++);
320 if (l > (unsigned long)max)
322 al=SSL_AD_ILLEGAL_PARAMETER;
323 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
326 if (l && !BUF_MEM_grow(s->init_buf,(int)l))
328 SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
331 s->s3->tmp.message_size=l;
337 /* next state (stn) */
338 p=(unsigned char *)s->init_buf->data;
339 n=s->s3->tmp.message_size;
342 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
343 (char *)&(p[s->init_num]),(int)n);
347 return(ssl3_part_read(s,i));
353 ssl3_send_alert(s,SSL3_AL_FATAL,al);
359 int ssl_cert_type(x,pkey)
367 pk=X509_get_pubkey(x);
370 if (pk == NULL) goto err;
373 if (i == EVP_PKEY_RSA)
375 ret=SSL_PKEY_RSA_ENC;
378 j=X509_get_ext_count(x);
379 /* check to see if this is a signing only certificate */
380 /* EAY EAY EAY EAY */
383 else if (i == EVP_PKEY_DSA)
385 ret=SSL_PKEY_DSA_SIGN;
387 else if (i == EVP_PKEY_DH)
389 /* if we just have a key, we needs to be guess */
395 j=X509_get_signature_type(x);
396 if (j == EVP_PKEY_RSA)
398 else if (j== EVP_PKEY_DSA)
410 int ssl_verify_alarm_type(type)
417 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
418 case X509_V_ERR_UNABLE_TO_GET_CRL:
419 al=SSL_AD_UNKNOWN_CA;
421 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
422 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
423 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
424 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
425 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
426 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
427 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
428 case X509_V_ERR_CERT_NOT_YET_VALID:
429 case X509_V_ERR_CRL_NOT_YET_VALID:
430 al=SSL_AD_BAD_CERTIFICATE;
432 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
433 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
434 al=SSL_AD_DECRYPT_ERROR;
436 case X509_V_ERR_CERT_HAS_EXPIRED:
437 case X509_V_ERR_CRL_HAS_EXPIRED:
438 al=SSL_AD_CERTIFICATE_EXPIRED;
440 case X509_V_ERR_CERT_REVOKED:
441 al=SSL_AD_CERTIFICATE_REVOKED;
443 case X509_V_ERR_OUT_OF_MEM:
444 al=SSL_AD_INTERNAL_ERROR;
446 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
447 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
448 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
449 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
450 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
451 al=SSL_AD_UNKNOWN_CA;
453 case X509_V_ERR_APPLICATION_VERIFICATION:
454 al=SSL_AD_HANDSHAKE_FAILURE;
457 al=SSL_AD_CERTIFICATE_UNKNOWN;
463 int ssl3_setup_buffers(s)
469 if (s->s3->rbuf.buf == NULL)
471 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
472 extra=SSL3_RT_MAX_EXTRA;
475 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
481 if (s->s3->wbuf.buf == NULL)
483 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
488 s->packet= &(s->s3->rbuf.buf[0]);
491 SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);